NEET 2022 Question Paper Mock Test

Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.Statement II: $o$ -nitrophenol, $m$ -nitrophenol and $p$ -nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.

What mass of $95\%$ pure ${\text{CaCO}}_3$ will be required to neutralise $50\text{mL}$ of $0.5\text{M HCl}$ solution according to the following reaction?
$${\text{CaCO}}_3(s)+2\text{HCl}(aq)\to {\text{CaCl}}_2(aq)+{\text{CO}}_2(g)+2{\text{H}}_2\text{O}(l)$$

The IUPAC name of an element with atomic number $119$ is:

Choose the correct statement:

Statement I: In the coagulation of a negative sol, the flocculating power of the three given ions is in the order: ${\text{Al}}^{3+}>{\text{Ba}}^{2+}>{\text{Na}}^{+}$ Statement II: In the coagulation of a positive sol, the flocculating power of the three given salts is in the order: $\text{NaCl}>{\text{Na}}_2{\text{SO}}_4>{\text{Na}}_3{\text{PO}}_4$